3 years ago

I am struggling could someone please help me.

Mathematics

1 answer:

ryzh [129]3 years ago

6 0

Answer:

- 30 cud be the answer for the question, I'm not really sure

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sally needs 7 more Apples, but if Sally is doubling the recipe she will need 14 more Apples

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Find the difference between the fastest girls time and the slowest girl time. Barbra ran 3 3/10, Donna ran 2 4/5 , Cindy ran 4 3

Xelga [282]

Answer: 2.5 or 2 1/2

Step-by-step explanation:

You can convert the mixed fractions to decimal numbers:

- Divide the numerator by the denominator of the fraction.

- Add the result to the whole number.

Thenyou have:

Barbara's time: $3\ 3/10=3+0.3=3.3$

Donna's time: $2\ 4/5=2+0.8=2.8$

Cindy's time: $4\ 3/5=4+0.6=4.6$

Nicole's time: $2\ 1/10=2+0.1=2.1$

As you can see, the fastest girl is Cindy and the slowest girl is Nicole.

Then, you must make the following subtraction to calculate the difference:

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4 years ago

the denominator of a fraction is 3 less than the numerator. If 5 is added to the numerator and denominator, the result is 5/6. F

Vitek1552 [10]

X=numerator
y=denominator
the sum of numerator and denominator=x+y
we suggest this system of equations:

y=x-3
(x+5) / (y+5)=5/6

we solve this system of equation by substitution method.
(x+5) / (x-3+5)=5/6
(x+5) / (x+2)=5/6
6(x+5)=5(x+2)
6x+30=5x+10
6x-5x=10-30
x=-20

y=x-3=-20-3=-23

Teh sum of the numerator an denominator=-20+(-23)=-43

Answer: -43

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3 years ago

Hi, guys I am sorry to bother you but can yall help me. I will also be giving 540 points for free.

Serhud [2]

Answer:

question one C D E question two is A

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3 years ago

3 2/3,3 2/5,3 7/15 from least to greatest. how?

tankabanditka [31]

-12/16 < 3/4 = 9/12 < 2 < 3 5/8

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3 years ago